Configure reasoning_effort for OpenAI reasoning models

[hassiebp]

Allow configuring reasoning_effort for reasoning models in Model params UI in playground and LLM-as-a-judge.

https://platform.openai.com/docs/api-reference/chat/create

[jannikmaierhoefer]

& gemini 2.5 flash's turn off reasoning feature.

[maxdeichmann]

Allow configuring reasoning_effort for reasoning models in Model params UI in playground and LLM-as-a-judge.

https://platform.openai.com/docs/api-reference/chat/create

We also require this for prompt experiments.

[tspecht]

Was this ever added?

[hassiebp]

Yes https://langfuse.com/docs/administration/llm-connection#additional-provider-options